PL1_PazmanyPhoto courtesy of EAA Sport Aviation: “L. Pazmany with first prize for Original Design won at EAA Fly-In at Corona Airport, October 7, 1962”

NOTES: With the newer, lighter engines (e.g. Lycoming O-233) and minor modifications, the PL-1 could be made to meet FAA Light-Sport Aircraft (LSA) category requirements. Note the requirement for stall speed: “A maximum stalling speed or minimum steady flight speed without the use of lift-enhancing devices (VS1) of not more than 45 knots calibrated airspeed at the aircraft’s maximum certified takeoff weight and most critical CG.”
Engine Continental
C90-12F

(Actual Performance)
Lycoming
0-290-D2b

(Estimated Performance)
Gross Weight (lb) 1,320 1,407
Wing Area (sq. ft) 116 116
Wing Loading (lb/sq. ft) 11.4 12.1
Power, T.O. (hp) 95 140
Power, Rated RPM (hp) 90 135
Rated Power Loading (lb/hp) 14.7 10.4
Empty Weight (lb) 800 881
Span (ft) 28 28
Length (ft) 18’11” 18’11”
Fuel Capacity (gal) 25 25
Max Speed SL (mph) 120 160
Cruise Speed SL (mph) 115 155
Landing Speed SL, 37 deg
Flap – 1.1VS (mph)
56 59
Stall Speed SL, 37 deg
Flap (mph)
51 (44.3 knots) 54 (46.9 knots)
Rate of Climb SL (fpm) 1,000 1,600
Usable Service Ceiling (ft) 18,000 22,000
Normal Range SL (mi) 500 450
Take-Off Distance/50 ft,
15 deg Flap (ft)
784 560